1a2m3
commented
6 months ago Ок, здесь можно писать на русском или украинском.
RSWP через SMBus можно поставить только на платах с DDR5. Снять защиту RSWP без модификаций можно на некоторых платах Asus серии Maximus, у которых есть разъем MR_TEST2. В остальных случаях статус RSWP можно только прочитать через SMBus.
Для полноценной поддержки RSWP лучше собрать программатор на Arduino.
Когда подавал 9V на SA0, сколько модулей памяти было на материке в момент попытки снятия защиты?
WewerRaver
Hi 1A! Great thanks for your tool!!! I find Your thread on EVGA forum ("My Arduino-based RAM SPD reader/writer") but site looks like for americans, so i don't register there I'm from Ukraine, so, maybe my english not very well, sorry, Will believe in Google-translate) and hope readers can understand message. I find B250 Biostar mobo some days ago and after short bios-mod it become SPD-via-SMBus rewritable) But, Problem #1: RSWP, all 3 SA-lines shorted to GND Problem #2: I soldered a RAM-half slot extension(like in programmer), which include all 8 pins for SPD chip in parallel to DIMM2 slot The first time the wires were about 20 cm long, but the program did not see any in-slot inserted sticks. However, if I hot-plug sticks into the board itself, they are detected correctly. At now wires shorter than 10cm, max close to board but situation the same, maybe board want some signal to activate slot, like termination or something else?
This is the background..) Today I found a new board MSI B450-A PRO MAX, good am4 mobo with 4 dimm slot Board is very interesting for this task In slot A1 and B1, SA0 lines are shorted to ground like B250, but A2 and B2 are connected to 3.3V via 1kΩ separately from each other. This is a triumph, I thought! I quickly soldered the 3.3/9v SA0 jumper, the 9V battery has been there since the B250) Starting Windows, launching SPDRWgui,,,
Problem #3: Long initialization time, more than a minute, then connecting - the same thing 1+min Perhaps this is a feature of the ZEN board or CPU 200GE..
Problem #4: Press F6 - yes, 3 of 4 block a RSWP Protected(Micron) Change My jumper to 9v(tester show 9.78v), click on Clear RSWP icon and after few seconds - Cleared Ok! And this is happiness!!! ))) Press F6 for checking - 3 of 4 block a RSWP Protected!?!?!? ((( maybe reboot needed!?! I understand that no but Rebooting system even not changing jumper position, Windows, SPDRWgui, F6,, same,, 3 of 4 protected Trying with different sticks(Samsung, Hynix) - any changes.
So, not briefly, but I tried to describe my actions in detail At a minimum, the B450-A PRO MAX can make a good home system and a good programmer for 2 sticks at once)
Regards